s4-common: update HDMI sysfs node permissions

Change-Id: I7b507c25408903cba84fcaa9ee11d93ec4f56c33
s4-common: move mount_all directive to init.qcom.rc

Change-Id: If26b45671e5da81dc8a4a669e8acc252ae0d0597
s4-common: move tombstones directory to /data

Change-Id: If2b7aba6752919cf82a8af65242da03f91008858
s4-common: fix tombstone directory creation

Change-Id: Ib17e4879d3530e474a6428e698ea6ebcbfe09d7d